One time I was teaching in an A.C.E. Christian school. I was in the habit of sometimes getting down on my knees at a student's desk (office) to help with school work. One day I was down on my knees, and the little kindergartners who had class in a separate room came out of their room single file and walked down the aisle where I had my legs sticking out.
The first little kid, who was looking around the room and not straight in front of him, tripped over my legs and landed face-down on the floor and on top of my legs. The next little kid ran into the back of the other and fell on top of him. The next one did the same until all the kindergartners were in a pile on my legs. Some were crying. I was laughing hysterically. A fun time was had by all, except some. It's one of my fond, non-teaching, teaching memories.